poisoning

Hey I have a 4 year old Horsfield tortoise. He has a small enclosure n the garden that I put him in when the weathers nice. I pick out any daisies and buttercups that grow in there but I must have missed a buttercup and when I turned around he was eating it. I’ve read that buttercups can be...

Is there anything that could cause a tortoise to die in 48 hours? Do tortoises have common sense, or do they eat sweet wrappers, plastics etc. Please share poisoning stories or ingestion related deaths.